Extend README as people seem to be suddenly looking at this code; remove cruft from analysis test script.

test.py

@@ -1,26 +1,12 @@
 
-import numpy as np
 from pylab import figure, plot, show
 
 from analysis import annotate_series
 from scope import await_, capture, main
-from utils import DotDict
 
 
 await_(main())
-
-# o = 400
-# m = 5
-# n = o * m
-# samples = square_wave(o)
-# samples = np.hstack([samples] * m) * 2
-# samples = np.hstack([samples[100:], samples[:100]])
-# samples += np.random.normal(size=n) * 0.1
-# samples += np.linspace(4.5, 5.5, n)
-# series = DotDict(samples=samples, sample_rate=1000000)
-
-data = capture(['A'], period=20e-3, nsamples=2000)
-series = data.A
+series = capture(['A'], period=20e-3, nsamples=2000).A
 
 figure(1)
 plot(series.timestamps, series.samples)
@@ -35,6 +21,7 @@ if annotate_series(series):
         print(f"Found {waveform.frequency:.0f}Hz {waveform.shape} wave, "
               f"with amplitude ±{waveform.amplitude:.2f}V and offset {waveform.offset:.2f}V")
 
-    plot(waveform.timestamps + waveform.capture_start - series.capture_start, waveform.samples * waveform.amplitude + waveform.offset)
+    plot(waveform.timestamps + waveform.capture_start - series.capture_start,
+         waveform.samples * waveform.amplitude + waveform.offset)
 
 show()